Files

102 lines
4.4 KiB
Python
Executable File

#!/usr/bin/env python3
"""
Generate SSH key pair
Verify that 'guest' user can fetch data using only the 'public' key
"""
import infamy
import os
import tempfile
from infamy import ssh, until, netutil
USER = "guest"
KEY = {
"private": """-----BEGIN OPENSSH PRIVATE KEY-----
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NhAAAAAwEAAQAAAQEAn3zL3StVQZLsP9dnrXxK/PT4m2tjW0M+2GN6JdiIUZyKI9KKHWaf
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eTVndLHpDiTZO+tCIP+OO45uYA/8O+IMc+wvIsHCpZC7e3bskg6z2gt5B0DwSnf2Q4zXxP
OFXdOBTFO8XcgWKRo9BIPV6BNH9qrx0Z0m5G45rY6SE9c5Ypv0ExjXRZ/iPWLBSarsv1fF
lrH5aNT6hzZKsc8AAAAMcm9vdEBpbmZhbXkwAQIDBAUGBw==
-----END OPENSSH PRIVATE KEY-----
""",
"public": "AAAAB3NzaC1yc2EAAAADAQABAAABAQCffMvdK1VBkuw/12etfEr89Piba2NbQz7YY3ol2IhRnIoj0oodZp/a4c11c1Q+jQkbCDKPWB45w3ZMR2Q93XXeY72qtLzvCBLOzeCkX3czMAJLLxznl3EXmDnTAWetE1nUmByLLOvKdw1CPFiS9tushwdfj6iOfex3HvQwltV5i/rQz0h7JeSwEQ0Xn6sBgDxWlD6TtwYl4ch0zHoxRHCjqdQig7NMonhaF53BMKRYaUSLET3w+zKfK8HYiHxry6Jf+dcts9PQyxpCiEW3RoU65nwnq1pG7XAdmT/DeGKSQqXkdnmXvgZkrQYZ+4HW2veQlHzwwEIAhMTscS+QiOX/",
}
with infamy.Test() as test:
with test.step("Connect to the target device"):
env = infamy.Env()
target = env.attach("target", "mgmt")
with test.step("Create a guest user on the target device"):
# Upon attachment, target reverts to `test-config`, in which
# the SSH service is enabled, hence we do not have to
# explicitly enable it here.
target.put_config_dicts({
"ietf-system": {
"system": {
"authentication": {
"user": [
{
"name": USER,
"authorized-key": [
{
"name":"guest-ssh-key",
"algorithm": "ssh-rsa",
"key-data": KEY["public"]
}
],
"infix-system:shell":"bash"
}
]
}
}
}
})
with test.step("Wait until SSH server is ready to accept connections"):
until(lambda: netutil.tcp_port_is_open(target.get_mgmt_ip(), 22))
with test.step("Write private key to a temporary file"):
with tempfile.NamedTemporaryFile(delete=False, mode='w') as key_file:
key_file.write(KEY["private"])
key_file_name = key_file.name
os.chmod(key_file_name, 0o600)
with test.step("Verify it is possible to fetch syslog data using public key"):
address = target.get_mgmt_ip()
syslog_file = "./syslog_copy"
ssh.fetch_file(
remote_user=USER,
remote_address=address,
remote_file="/var/log/syslog",
local_file=syslog_file,
key_file=key_file_name,
check=True,
remove=True
)
test.succeed()